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Fraser
2004-Jun-24, 06:37 PM
SUMMARY: The Supernova Integral Field Spectrograph (SNIFS), a new instrument designed to examine exploding stars, has observed its first target: supernova SN 2004cr. Mounted on board the University of Hawaii's 2.2 metre telescope on Mauna Kea, the instrument is designed to simultaneously observe a supernova, its home galaxy, and the surrounding sky. It should make very precise measurements of Type 1A supernovae, which are considered by astronomers to be "standard candles" - every explosion is the same brightness, so you can use them to measure the distance to galaxies.

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antoniseb
2004-Jun-24, 07:55 PM
This instrument will be very helpful on a lot of fronts. The article discusses its importance for finding type 1a supernovae, but it will also be important for proving or disproving the theories which dispute cosmological expansion velocities, as it will improve the light-curve data on distant supernovae.